Pumping system



' 1,517,665 Dec. 2, l. CHASE PUMPING SYSTEM Filed Jan. 24, 1924 PUMP 3 Qj, 1&6 16 I U l\\ in" T0 f/VG/A/f 1 v a I INVENTOR ATTORNEY- PatentedDec. 2., 1924.

UITED STATES PATENT FFICE.

IRWIN CHASE, 0F BAYONNE, NEW JERSEY, ASSIGNOR TO THE ELGO WORKS 038' THEELECTRIC BOAT CO'IJIPANY, A CORPORATION OF NEW JERSEY.

PUMPING SYSTEM.

Application filed January 24, 1924.

To all w/zom it may concern Be it known that I, IRWIN CHAsn, a citizenof the United States of America, residing at Bayonne, in the county ofHudson, titatc of New Jersey, have invented certain new and usefulImprovements in Pumping Systems; and I do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it app-ertains to i'nakeand use the same.

This invention relates to pun'iping systems and particularly to pumpingsystems for use on ships for pumping cooling water to the engine.

In many types of vessels it is customary to pump cooling water to theengine. The water used for cooling the engine is ordinarily pumpeddirectly from the sea, and after it has performed its function orcooling the engine it is discharged overboard. It has been proposed toprovide a connection. from the pump to the bilge of the vessel wherebythe accumulation of bilge water may be pumped out of the bilge, throughthe engine and then discharged overboard. In this way, the bilge watermay be dis charged and, at the same time, it serves to cool the engine.Furthermore, the same pump that serves to pump sea water to the enginefor cooling the same may be used for discharging the accumulated bilgewater. This system, however, is not wholly satisfactor tor sometimes itis necessary to pump out the bilge water when the engine pump s notrunning.

One object of this invention is to provide an improved pumping systemespecially adapted for use on vessels for pumping cooling water to theengine, and which will be operative to discharge the bilge waterwhenever this is desired.

Anotlnn' object is to provide such a pumping systen'i in which therewill be no danger of nnnping sea water into the bilge.

Other objects will appear from the following description.

One embodiment of the invention is illustrated in the accompanyingdrawing which represents, in side elevation, the improved pumping systemas applied to a vessel. I

In the drawing the hull of the vessel is represented at 1. The pump forpumping cooling water to the engine is shown at 2. This pump may be theusual mechanically operated pump employed on vessels, and may Serial No.688,173.

be driven by the main engine, or by a separate motor or engine. The pump2 has a pipe connection 3 leading to the engine and a pipe connection 4leading to a strainer or trap 5. A pipe 6 which is open to the sea atits inlet end communicates with the trap 5 through a hand-valve 7 and apipe 7. The inlet end of the pipe 6 may have associated therewith astrainer S. The'pipe 4-, trap 5 and pipes 6 and 7 constitute one intakeconduit for the pump 2. Communicating with. the valve 7 is a branch pipe9, the passage through which is controlled by a valve 10 preferably ofthe self-closing type. The pipe 9 connects with a hand pump 11. whichhas a flexible hose connection 12 extending into the bilge. The inletend of the hose may be provided with a strainer 13. The hand pump 11 isprovided with a plunger (not shown) having a valve therein, the plungerand valve being of common construction. The pipe 9, hand pump 11 andhose 12 constitute a second intake conduit for the pump 2.

When the pump 2 is operating, cooling water is pumped to the enginedirectly from the sea through strainer 8, pipe 6, valve 7, trap 5, pipe4, thence through the pump and the pipe 3 to the engine. From the enginethe cooling water can be discharged directly overboard. The valve 7 isof such a construction that when it is open it establishes communicationbetween pipe 6 and pipes 7 and 9, and when it is closed it entirely cutsoff this communication, but leaves a clear passage from the pipe 9 tothe pipe 7 When water is being pumped from the sea to the engine throughpipe 6, the valve 7 should, of course, be open. It should be rememberedat this point that the valve 10 is a self-closing valve, and, therefore,normally closed. The valve in the hand pump l1 serves as an additionalcheck to preterit Water from flowing into the bilge. and therefore whenthe pump 2 is operating and the valve 7 is open, the normal course forthe cooling water is through the pipes (5 and land the intermediateconnections. It is oil course possible to supplement the supply ofcooling water pumped into the engine in th is manner by operating thehand pump 11, the valve 10 of course being held open while the hand pumpis operated. In this manner the bilge water can be pumped into the mainsupply line for the engine pump and the bilge water can be disposed ofwhile the en gine pump is drawing water through the main pipe connection6 instead of through the bottom of the vessel.

An accumulation of bilge water is represented at 14;. If it be desiredto pump this out at any time when the pump 2 is operating it is onlynecessary to close the valve 7 and to hold open the valve 10. The pump 2Will then serve to draw the bilge water 14 through the hand pump 11,pipes 9 and 7, trap 5, pipe 4, thence through the pump 2, which forcesit to the engine and then overboard. The valve 10 may be made selfclosing by means of a spring 15. When it is desired to open the valvethe handle 16 may be turned against the action of the spring 15. WVhenthe force applied to the handle 16 is removed the spring closes thevalve.

Should it become necessary to pump out the bilge Water when the pump 2is not operating, the valve 10 is held open. The hand pump 11 is thenoperated to pump out the bilge Water through hose 12, pipes 9 and 6, andstrainer 8. Ordinarily, it is not possible to pump Water from the bilgethrough the main engine pump by means of the hand pump, when the enginepump 2 is not operating. If the engine pump should become broken,however, the hand pump can be used to supply cooling waterto the enginefor a short time by pumping the bilge water directly to the enginethrough the broken pump 2. A further advantage of this invention lies inthe fact that the hand pump can be used for the means of supplying waterto the engine pump 2, for the purpose of priming this pump, should thisever become necessary.

It will be seen that valve 10, being self closing, acts as a safetydevice and precludes any possibility of Water being pumped or siphonedfrom the sea through pipe 6 and through hand pump 11 into the bilge. Thevalve in the hand pump 11 supplements the action of the valve 10 inreventing water from being siphoned into the bilge through the pipe 6.It should also be noted that when the bilge water is pumped out by meansof the engine pump 2, the water passes directly through'the hand pump11, no other connection or by-pass being necessary.

Although the improved pumping system has been described as applied to avessel, it is apparent that it maybe used in other relations Where theparticular combination herein described may be of value. Furthermore,the details of construction can be varied Without departing from theprinciple of the invention, which is not confined to the particularei'nbodiment illustrated and described, but includes such modificationsthereof fall within the scope of the appended la m What I claim is:

1. A pumping system comprising a pump, an intake conduit for said pump,having an inlet adapted to receive fluid from one source, and a secondintake conduit "for said pump, having an inlet adapted to receive fluidfrom a second source, a hand pump interposed in the second intakeconduit, and means for controlling the passage of fluid through saidconduits.

2. In a vessel, a pumping system comprising a pump having an intakeconduit communicating with the sea, and a second intake conduitcommunicating with the bilge of the ship, a hand pump interposed in thesecond intake conduit, and means for controlling the passage of waterthrough said intake conduits.

3. In a vessel, a pumping system comprising a mechanically operatedpump, an intake conduit communicating with the sea, a second intakeconduit con'ununicating with the bilge of the ship, a hand pumpinterposed in the second intake conduit, a valve for opening or closingthe first intake conduit and a self closing valve located in the secondintake conduit between the mechanical pump and the hand pump.

a. In a vessel, apumping system for pumping cooling water to the engine,comprising a mechanically operated pump, an intake conduit communicatingwith the sea, a second intake conduit communicating with the bilge ofthe vessel, :1 hand pump inter posed in the second intake conduit, avalve for opening or closing the first intake conduit, and a selfclosing valve in the second intake conduit between the hand pump and themechanical pump, whereby cooling water may be pumped by the mechanicalpump from the sea to the engine, or bilge water pumped by the mechanicalpump through the hand pump to the engine. and wherel'iy the bilge watermay be discharged by the hand pump when the mechanical pump is notoperating.

A pumping system comprising a pump, an intake conduit For said pump,having an inlet adapted to receive. fluid from one source, a secondintake conduit for said pump adapted to receive fluid from a secondsource. a hand pump interposeil in the second intake conduit. a valuefor openingor c osing the first intake conduit. and a self closing valvecontrolling said second intake conduit, said sell. closing valvenormally preventing the first named pump from pumping fluid from thesecond source nithough permitting this operatimi when opened, and alsonormally preventing fluid from passing from the first source to thesecond;

In testimony whereof I ilfllj'; 1U) signature.

IRVIN CHAS E.

ion

